State Key Laboratory for Geomechanics and Deep Underground Engineering;
School of Mechanics and Civil Engineering;
China University of Mining and Technology;
Xuzhou;
221116;
China;
Key Laboratory of Transportation Tunnel Engineering;
Ministry of Education;
Southwest Jiaotong University;
Chengdu;
610031;
China;
School of Civil Engineering;
University of Leeds;
Leeds;
LS29JT;
UK;
Convergence-confinement method(CCM); Cavity contraction analysis; Tunnel convergence;